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Protocol - High Blood Pressure During Pregnancy

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Description:

A measure to assess high blood pressure during a current pregnancy.

Protocol:

Did you have (Have you had) any of these illnesses or complications during this pregnancy?

1. Toxemia including all of the following: high blood pressure, albumin (protein) in urine, and swelling of the ankles?

[] 1 No

[] 2 Yes

[] 8 Not Sure

2. High blood pressure without toxemia?

[] 1 No

[] 2 Yes

[] 8 Not Sure

Diagnostic Criteria:

Blood pressure during pregnancy recorded at or above an average of 140 mmHg systolic or 90 on two or more seated blood pressure measured properly with well maintained equipment. There are four subcategories:

1. Chronic hypertension as presence of hypertension before the 20th week of gestation or persistent hypertension for longer than 12 weeks postpartum.

2. Gestational hypertension with hypertension first detected after 20 weeks of gestation without proteinuria.

3. Preeclampsia-eclampsia with new onset of hypertension in a previously normotensive woman accompanied by more than 300 mg proteinuria per 24 hours.

4. Preeclampsia superimposed on underlying hypertension.

Protocol Name from Source:

The Expert Review Panel has not reviewed this measure yet.

Availability:

Publicly available

Personnel and Training Required

An interviewer who is trained to conduct personal interviews with individuals from the general population is required. The interviewer must be trained and found to be competent (i.e., tested by an expert) at the completion of personal interviews.* The interviewer should be trained to prompt respondents further if a "don't know" response is provided.

*There are multiple modes to administer this question (e.g., paper-and-pencil and computer-assisted interviews).

Equipment Needs

None

Requirements
Requirement CategoryRequired
Major equipment No
Specialized training No
Specialized requirements for biospecimen collection No
Average time of greater than 15 minutes in an unaffected individual No
Mode of Administration

Interviewer-administered questionnaire

Life Stage:

Adolescent, Adult

Participants:

Women ≥18 years old

Note: This protocol has been reliably used with women ≥18 years of age. However, the Cardiovascular Working Group suggests the same methodology can be used for women 13 years and over.

Specific Instructions:

Ask questions 1 and 2 of all pregnant women. Conducting a blood pressure measurement provides additional specificity. See the Blood Pressure (Adult/Primary) measure for the blood pressure measurement protocol.

This protocol asks about a current pregnancy. For users wishing to collect historical data, the question could be asked of previous pregnancies.

Selection Rationale

This protocol was selected because it asks specifically about high blood pressure during a current pregnancy, with and without toxemia. It was also used in a major U.S. health study.

Language

English, Spanish

Standards
StandardNameIDSource
Common Data Elements (CDE) Person Hypertension During Pregnancy Indicator 2935349 CDE Browser
Logical Observation Identifiers Names and Codes (LOINC) Preg high blood pressure proto 62393-4 LOINC
Process and Review

The Expert Review Panel has not reviewed this measure yet.

Source

U.S. Department of Health and Human Services. National Institutes of Health. National Heart, Lung and Blood Institute. Coronary Artery Risk Development in Young Adults (CARDIA) Study. Y20 CARDIA VII. Pregnancy Questionnaire. Page 4. Questions 11a and 11b (source for questions 1 and 2).

National High Blood Pressure Education Program Working Group. (2000). Report of the National High Blood Pressure Education Program Working Group on High Blood Pressure in Pregnancy. American Journal of Obstetrics and Gynecology, 183(1), S1–S22 (source for Diagnostic Criteria).

General References

None

Protocol ID:

40401

Variables:
Export Variables
Variable NameVariable IDVariable DescriptionVersiondbGaP Mapping
PX040401_HBP_No_Toxemia_During_Pregnancy PX040401020000 Did you have (Have you had) any of these illnesses or complications during this pregnancy? High blood pressure without toxemia? 4 N/A
PX040401_Toxemia_During_Pregnancy PX040401010000 Did you have (Have you had) any of these illnesses or complications during this pregnancy? Toxemia including all of the following: high blood pressure, albumin (protein) in urine, and swelling of the ankles? 4 N/A
Research Domain Information
Measure Name:

High Blood Pressure During Pregnancy

Release Date:

September 9, 2009

Definition

Measure to assess high blood pressure during pregnancy.

Purpose

To determine presence of high blood pressure during pregnancy in order to guide treatment protocols and avoid serious complications to the mother and child.

Keywords

Cardiovascular, high blood pressure during pregnancy, Coronary Artery Risk Development in Young Adults, CARDIABlood pressure, BP, hypertension, systolic, diastolic, toxemia, pregnancy, pregnant, pre-eclampsia, proteinuria, gestational hypertension, personal history